The following dot plot shows the mass of each rock in Nija's rock collection. Each dot represents a different rock.

To find the total mass you will add the following masses together:

1/4 + 1/4 + 2/4 + 2/4 + 2/4 + 3/4 + 3/4

For every X you list the number that many times.

The sum is 14/4 or 3 2/4 or

3 1/2.

The answer is choice D.

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Step-by-step explanation:

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step-by-step explanation:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh